Hiroshima Band
type: MusicGroup
popularity: 3
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf75f1df86fe7289ceb0b5271b1971f3fb7eebc4fc47ecaeb1871edfaa88d0039
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/acac8fed-17a0-4edf-a63b-af62dbcf7aa0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/acac8fed-17a0-4edf-a63b-af62dbcf7aa0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/acac8fed-17a0-4edf-a63b-af62dbcf7aa0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf75f1df86fe7289ceb0b5271b1971f3fb7eebc4fc47ecaeb1871edfaa88d0039","name":"Hiroshima Band","registered_at":"2026-06-20T10:12:26Z","symbol":"NIM1589588","token_address":"0x139e97301e6c8e78007c373788bf8c8d8443b654","type":"artist","uuid":"acac8fed-17a0-4edf-a63b-af62dbcf7aa0"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75f1df86fe7289ceb0b5271b1971f3fb7eebc4fc47ecaeb1871edfaa88d0039. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acac8fed-17a0-4edf-a63b-af62dbcf7aa0.json and https://artists.proofprofile.net/proofs/artist/acac8fed-17a0-4edf-a63b-af62dbcf7aa0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0xf75f1df86fe7289ceb0b5271b1971f3fb7eebc4fc47ecaeb1871edfaa88d0039","name":"Hiroshima Band","registered_at":"2026-06-20T10:12:26Z","symbol":"NIM1589588","token_address":"0x139e97301e6c8e78007c373788bf8c8d8443b654","type":"artist","uuid":"acac8fed-17a0-4edf-a63b-af62dbcf7aa0"}
album: Cinta Sejati Romantis
  type: MusicAlbum
  date published: 2024-11-30
  track: Cinta Sejati Romantis
    type: MusicRecording
    duration: PT3M47S
    duration ms: 227370
    explicit: false
    by artist: Hiroshima Band
    in album: Cinta Sejati Romantis
      type: MusicAlbum
      date published: 2024-11-30
    isrc code: AEA3A2250327
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T16:15:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8ed39b5f40fa6b67ebb1da0128002802acf4bf3f51afc7c7a2fc92199a632434
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958176
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958176
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AEA3A2250327
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T19:18:11Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed39b5f40fa6b67ebb1da0128002802acf4bf3f51afc7c7a2fc92199a632434. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:18:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AEA3A2250327.
      date published: 2026-07-15T19:18:11Z
    audio: Cinta Sejati Romantis
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 133.019
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.787
      additional property: Energy
        type: PropertyValue
        value: 0.333
      additional property: Speechiness
        type: PropertyValue
        value: 0.094
      additional property: Acousticness
        type: PropertyValue
        value: 0.443
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.218
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.35
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.859
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major